According to this post on the Sage Community, Payroll 2.24.0 availability is scheduled for December 14th, 2023. Compatibility is Sage 100 version 2020 or higher.
Expect that another update may be issued for tax filings ( W2 and 1099 ) as noted in this November 7, 2023 post in the Sage Community – Alert: Payroll and 1099 compatibility for Sage 100 is changing. It is believed that the same v2020+ requirement will exist.
From the community post:
Effective with the release of Payroll 2.24, payroll and 1099 customers on versions 2018 and 2019 will need to be running one of the following versions of Sage 100 to install the latest release of Payroll and 1099 forms:
Customers not running a compatible version of Sage 100 will experience a failure of the Payroll update installation and the inability to generate 1099’s, W-2’s or associated tax reporting documents.